www.baldormotion.com
4-6 Input / Output
MN1928
4.3.2 Analog outputs
The four analog outputs are available on a range of pins, as shown in section 4.2.1.
H
Four independent analog outputs (model dependent).
H
Output range: ±10 VDC (±0.1%).
H
Resolution: 12-bit.
H
Output current: 10 mA maximum.
H
Update frequency: 10 kHz maximum (adjustable using the
LOOPTIME
keyword, factory
default 1 kHz).
Mint and the Mint Motion Library use analog outputs Demand0 and Demand1 to control drive
amplifiers. Demand outputs 0 and 1 are used by axes configured as servo (see section 6.4.1).
The Demand2 and Demand3 outputs may be used as general purpose analog outputs. See
the
DAC
keyword in the Mint help file.
The analog outputs may be used to drive loads of 1 k
Ω
or greater. Shielded twisted pair cable
should be used. The shield connection should be made at one end only.
NextMove ES
Demand0
Demand
±100%
-
+
AGND
TL084
47R
c27
a30
+12V
-12V
Figure 4 - Analog output - Demand0 shown
NextMove ES
Demand0
AGND
12
MicroFlex / drive amplifier
AIN0+
AIN0-
Connect overall shield at
one end only
a32
Shield
Drive amplifier
±10 VDC
demand
input
-
+
c27
a30
13
‘X3’
Figure 5 - Analog output - typical connection to a Baldor MicroFlex
Servo Systems Co. • 115 Main Road • P.O. Box 97 • Montville, NJ,
07045-0097 • (973) 335-1007 • Toll Free: (800) 922-1103
Fax: (973) 335-1661 • www.servosystems.com
